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JPL Small-Body Database Browser
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226997 (2004 XA77)
Classification: Main-belt Asteroid          SPK-ID: 2226997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05279987279903179 4.3756e-08  
a 2.776016831047841 3.1538e-08 au
q 2.629443495480543 1.3361e-07 au
i 5.396947647576088 4.7413e-06 deg
node 95.48634932829242 6.3838e-05 deg
peri 331.3353087616397 8.6677e-05 deg
M 52.37504494478355 5.9427e-05 deg
tp 2458354.716073968417
(2018-Aug-24.21607397)
0.00027796 TDB
period 1689.396418936776
4.63
2.879e-05
7.882e-08
d
yr
n .2130938576432916 3.6315e-09 deg/d
Q 2.922590166615138 3.3204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7004 days (19.18 yr)  
   first obs. used      1999-11-05  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:29:58  

Additional Information
 Earth MOID = 1.64474 au 
 Jupiter MOID = 2.24175 au 
 T_jup = 3.327 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO433485  
diameter diameter 4.869 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226997 (2004 XA77)          Discovered 2004-Dec-10 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 XA77 = 2001 DC26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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